The third highest waterfall in the world is Three Sisters Falls, found in the remote Ayacucho region of Peru. The falls, also known as Cataratas las Tres Hermanas (literally meaning "Waterfalls of the Three Sisters,") rises an astonishing 3,000 feet (914 meters) and is named for the three distinctive tiers, or steps, that interrupt the flow. The top two tiers fall into a large, natural catch basin of water. The third tier, which is nearly impossible to see, emerges from the basin and falls into the Cutivireni River below.

The Three Sisters Falls are surrounded by lush, tropical rainforest where trees routinely grow to 100 feet tall. The rugged area is located in the protected Parque Nacional Otishi national forest, and neighbors striking natural features in the surrounding area including the Pavirontsi Natural Bridge, the largest natural bridge in the world.

The Three Sisters Falls are only visible from the air. Although there are rough trails leading to them, the area's dense vegetation makes it impossible to view the entire length of the falls from ground level [source: Merco Press].